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Linear representations of algebras and groups, Lie theory, associative algebras, multilinear algebra.
5
votes
1
answer
250
views
Jacquet Module of an Essentially Square Integrable Representation
Let $F$ be a $p$-adic field. Let $G$ be a connected reductive group and $\rho$ an irreducible admissible representation of $G(F)$. Let $P$ be a parabolic subgroup of $G$ and suppose further that $\rho …
2
votes
1
answer
148
views
Why are Trace characters regular functions on the Bernstein Variety?
Given a $p$-adic reductive group $G$ with Grothendieck group $R(G)$ and $f$ an element of the Hecke Algebra $H(G)$ we can consider the function $x: R(G) \to \mathbb{C}$ given by $\pi \mapsto trace \p …
2
votes
0
answers
80
views
Pseudocoefficients and Traces of Standard Representations
Let $G$ be a connected reductive group over $\mathbb{R}$ (you may assume that $G/Z(G)$ is anisotropic if necessary) and suppose $\pi$ is a discrete series representation of $G(\mathbb{R})$ with centra …
3
votes
0
answers
87
views
Recovering a $G$-valued representation/parameter
Number theoretic phrasing
Let $G$ be a connected reductive group over a characteristic $0$ field $F$. Associated to $G$ is its Langlands dual group $^{L}G$. For every dominant cocharacter $\mu$ of $G …